Consider a dielectric slab waveguide. This waveguide is designed to guide mil-limeter waves, and the dielectric core has a relative permittivity of 4 and sits in acladding region composed of air. Find the thickness of this guide such that only the TE1 mode can propagate at frequencies up to 300 GHz.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed. gi) ifn 1, what will happen to the material when transformed material when

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?